System for cleaning and charging deep drill hole in coal mine production

Abstract

The utility model discloses a system for cleaning and charging deep drilled holes in coal mine production, which comprises a cleaning device and a charging device, the cleaning device is used for cleaning rock residues and accumulated water in the deep holes to facilitate subsequent charging, and the charging device is used for charging the cleaned deep holes; the cleaning device comprises a cleaning pipe used for extending into the deepest position of a drill hole; a plurality of connecting pipes communicated in sequence, a plurality of reinforcing pipes communicated in sequence and a plurality of gas outlet pipes are mounted on the outer walls of outer pipes of the reinforcing pipes and used for spraying high-pressure gas entering the reinforcing containing cavity to the middle of a drill hole, and then rock residues and accumulated water in the middle of the drill hole are cleaned; rock residues and accumulated water are forced to flow out towards the hole opening of the drill hole along the drill hole; rock tea residues and accumulated water in a drilled hole can be blown out of the drilled hole through high-pressure air, then explosive charging is facilitated, the explosive can be rapidly fed into the deep position of the drilled hole through the explosive charging device during explosive charging, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the field of coal mine production, in particular to a system for cleaning and charging deep boreholes in coal mine production. Background Art

[0002] Drilling refers to the operation of drilling a hole in a solid material with a drill bit. In geological exploration, a cylindrical circular hole with a small diameter and a large depth is drilled underground using drilling equipment, which is also called a well. The diameter of the borehole for drilling oil, natural gas and groundwater is larger. The diameter and depth of the borehole depend on the depth of the geological mineral and the purpose of the borehole.

[0003] When deep hole drilling is used to drill deep blastholes through rock structures in coal mining, water and residues accumulated in the deep hole blastholes affect the charging, and the boreholes need to be cleaned. In addition, when charging, the original charging equipment is limited in length, and it is impossible to deliver the explosives to the bottom of the blasthole, and it is impossible to deliver the blasthole mud to the end of the last section of explosives, and it is impossible to seal the blasthole mud. Utility Model Content

[0004] The utility model aims to provide a system for cleaning and charging deep boreholes in coal mine production, so as to solve the problem that debris in the borehole of the deep hole affects charging and charging is difficult.

[0005] The utility model adopts the following technical scheme: a system for cleaning and charging deep boreholes in coal mine production, comprising: a cleaning device and a charging device, the cleaning device is used to clean rock residues and accumulated water in the deep hole to facilitate subsequent charging, and the charging device is used to charge the cleaned deep hole;

[0006] The cleaning device includes:

[0007] A cleaning tube, which is used to reach the deepest part of the borehole;

[0008] A plurality of connecting pipes connected in sequence, the leftmost connecting pipe is connected to the cleaning pipe, and the rightmost connecting pipe extends to the borehole opening; the outer end of the rightmost connecting pipe is connected to an external high-pressure gas source; each connecting pipe is used to provide high-pressure gas to the cleaning pipe, so that the cleaning pipe cleans the rock residues and accumulated water deep in the borehole; and forces the rock residues and accumulated water to flow out along the borehole to the borehole opening;

[0009] A plurality of reinforcing tubes connected in sequence are sleeved on the periphery of the connecting tube. The reinforcing tube consists of an inner tube and an outer tube. The inner tube and the outer tube are sleeved on the periphery of the connecting tube. The inner tube and the outer tube cooperate with each other to form a reinforcing accommodating cavity. The reinforcing accommodating cavity is an annular cavity. The end of the reinforcing accommodating cavity close to the deepest part of the borehole is closed, and the end close to the borehole orifice extends out of the borehole and is connected to an external high-pressure gas source.

[0010] A plurality of air outlet pipes are connected to the reinforced containing cavity and are installed on the outer wall of the outer tube of each reinforced tube, so as to spray the high-pressure gas entering the reinforced containing cavity into the middle of the borehole, thereby cleaning the rock residue and accumulated water in the middle of the borehole, and forcing the rock residue and accumulated water to flow out along the borehole to the borehole orifice.

[0011] Furthermore, it also includes: a guide pipe, which is "L"-shaped, one end of its horizontal section is connected to the outer end of the rightmost connecting pipe, and one end of its vertical section extends downward and is connected to an external high-pressure gas source. The guide pipe is used to block and redirect part of the rock residues and accumulated water ejected from the orifice to avoid direct damage.

[0012] Furthermore, the cleaning pipe is arc-shaped, and is convenient for blowing away rock residues and accumulated water.

[0013] Furthermore, the air outlet pipe is arranged obliquely, and its outlet faces the direction of the orifice.

[0014] Furthermore, six connecting pipes are provided, five reinforcing pipes are provided, and the reinforcing pipes are sleeved on the periphery of the connecting pipes in the middle.

[0015] Furthermore, the charging device includes a plurality of PVC pipes threadedly connected in sequence, and the plurality of PVC pipes are used to extend into the borehole to deliver the explosives deep into the borehole. The PVC pipe at the deepest part of the borehole is filled with explosives, and the other PVC pipes are used to deliver the deepest PVC pipe to the deepest part of the borehole.

[0016] Furthermore, the length of the PVC pipe is 1.2 m. The beneficial effects of the utility model are:

[0017] The utility model can blow rock tea residue and accumulated water out of the borehole by high-pressure air, thereby facilitating charging, and during charging, the explosive can be quickly delivered into the depth of the borehole by the charging device, thus greatly improving the working efficiency;

[0018] The utility model provides a reinforcing pipe, so that the high-pressure air in the reinforcing pipe is discharged into the borehole through the air outlet pipe, thereby further pressurizing and blowing the rock residues and accumulated water blown out of the cleaning pipe, thereby enhancing the flow rate and flow amplitude of the rock residues and accumulated water in the borehole to the hole mouth, and can improve the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a partial schematic diagram of the utility model.

[0021] Among them: 10. Cleaning pipe; 11. Connecting pipe; 12. Strengthening pipe; 13. Exhaust pipe; 14. Guide pipe. DETAILED DESCRIPTION

[0022] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. The "direction" in the present utility model is based on the position of the present utility model in the Figure 1 Description of the trend in the state.

[0024] The utility model discloses a system for cleaning and charging deep boreholes in coal mine production, such as Figure 1 and Figure 2 As shown, it includes: a cleaning device and a charging device, the cleaning device is used to clean rock residues and accumulated water in the deep hole to facilitate subsequent charging, and the charging device is used to charge the cleaned deep hole.

[0025] The cleaning device comprises: a cleaning pipe 10 , a plurality of connecting pipes 11 connected in sequence, a plurality of reinforcing pipes 12 connected in sequence, and a plurality of air outlet pipes 13 .

[0026] The cleaning tube 10 is used to extend into the deepest part of the borehole; the leftmost connecting tube 11 is connected to the cleaning tube 10, and the rightmost connecting tube 11 extends toward the borehole opening; the outer end of the rightmost connecting tube 11 is connected to an external high-pressure gas source; each connecting tube 11 is used to provide high-pressure gas to the cleaning tube 10, thereby enabling the cleaning tube 10 to clean rock residues and accumulated water deep in the borehole; and force the rock residues and accumulated water to flow out along the borehole to the borehole opening.

[0027] A plurality of reinforcing tubes 12 connected in sequence are sleeved on the periphery of the connecting tube 11, and the reinforcing tube 12 consists of an inner tube and an outer tube, and the inner tube and the outer tube are both sleeved on the periphery of the connecting tube 11, and the inner tube and the outer tube cooperate with each other to form a reinforced accommodating cavity, which is an annular cavity, and the end of the reinforced accommodating cavity close to the deepest part of the borehole is closed, and the end of the reinforced accommodating cavity close to the borehole opening extends out of the borehole and is connected to an external high-pressure gas source.

[0028] Multiple air outlet pipes 13 are connected to the reinforced containing cavity and are installed on the outer wall of the outer tube of each reinforced tube 12. The multiple air outlet pipes 13 are used to spray the high-pressure gas entering the reinforced containing cavity into the middle of the borehole, thereby cleaning the rock residue and accumulated water in the middle of the borehole, and forcing the rock residue and accumulated water to flow out along the borehole to the borehole mouth.

[0029] The utility model also includes: a guide pipe 14, which is "L"-shaped, one end of the horizontal section of the guide pipe 14 is connected to the outer end of the rightmost connecting pipe 11, and one end of the vertical section of the guide pipe 14 extends downward and is connected to an external high-pressure gas source. The guide pipe 14 is used to block and redirect part of the rock residues and accumulated water ejected from the orifice to avoid direct injection and cause damage.

[0030] The cleaning pipe 10 is arc-shaped and is convenient for blowing away rock residues and accumulated water. The air outlet pipe 13 is inclined and its outlet faces the direction of the orifice. Six connecting pipes 11 are provided, and five reinforcing pipes 12 are provided. The reinforcing pipes 12 are sleeved on the outer periphery of the connecting pipe 11 in the middle.

[0031] The charging device includes a plurality of PVC pipes threadedly connected in sequence, and the plurality of PVC pipes are used to extend into the borehole to deliver the explosives to the depth of the borehole. The PVC pipe at the deepest part of the borehole is filled with explosives, and the other PVC pipes are used to deliver the deepest PVC pipe to the deepest part of the borehole. The length of the PVC pipe is 1.2m.

[0032] Example 1

[0033] A coal mine needs to drill a 6-meter-deep hole and now prepares a cleaning device, as follows:

[0034] The cleaning tube 10, the connecting tube 11 and the guide tube 14 are all iron tubes with a diameter of 12.7 mm and a length of 1.5 m with wires at both ends. The guide tube 14 is processed into a 90° right angle and connected to a high-pressure gas source. The utility model is inserted into a deep hole blasthole to clean up debris in the drill hole or blasthole.

[0035] Now prepare the charging device, as follows:

[0036] The charging device is made of multiple PVC tubes with a diameter of 32mm and a length of 1.2m with threads at both ends. One end of the PVC tube is a male thread and the other end is a female thread. When charging and sealing, multiple PVC tubes are connected in sequence to load the medicine and seal the mud in the drill hole. The unit price of each PVC tube is 20 yuan, and a total of 5 tubes are used, with a total cost of only 100 yuan.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A system for cleaning and charging deep boreholes in coal mining, characterized in that: include: A cleaning device and a charging device, wherein the cleaning device is used to clean rock residues and accumulated water in the deep hole to facilitate subsequent charging, and the charging device is used to charge the cleaned deep hole; The cleaning device comprises: A cleaning tube (10) is used to extend into the deepest part of the borehole; A plurality of connecting pipes (11) connected in sequence, the leftmost connecting pipe (11) being connected to the cleaning pipe (10), and the rightmost connecting pipe (11) extending toward the borehole opening; the outer end of the rightmost connecting pipe (11) being connected to an external high-pressure gas source; each of the connecting pipes (11) being used to provide high-pressure gas to the cleaning pipe (10), thereby enabling the cleaning pipe (10) to clean rock residues and accumulated water deep in the borehole; and forcing the rock residues and accumulated water to flow out along the borehole toward the borehole opening; A plurality of sequentially connected reinforcing tubes (12) are sleeved on the periphery of the connecting tube (11), the reinforcing tube (12) being composed of an inner tube and an outer tube, the inner tube and the outer tube being sleeved on the periphery of the connecting tube (11), the inner tube and the outer tube cooperating with each other to form a reinforcing accommodating cavity, the reinforcing accommodating cavity being an annular cavity, the end of the reinforcing accommodating cavity close to the deepest part of the borehole being closed, the end of the reinforcing accommodating cavity close to the borehole opening extending out of the borehole and connected to an external high-pressure gas source, A plurality of air outlet pipes (13) are connected to the reinforced accommodating cavity and are installed on the outer wall of the outer tube of each of the reinforced tubes (12), and are used to spray the high-pressure gas entering the reinforced accommodating cavity into the middle of the borehole, thereby cleaning the rock residue and accumulated water in the middle of the borehole, and forcing the rock residue and accumulated water to flow out along the borehole to the borehole orifice.

2. A system for cleaning and charging deep boreholes in coal mine production according to claim 1, characterized in that: Also includes: The guide pipe (14) is L-shaped, one end of its horizontal section is connected to the outer end of the rightmost connecting pipe (11), and one end of its vertical section extends downward and is connected to an external high-pressure gas source. The guide pipe (14) is used to block and redirect part of the rock residue and accumulated water ejected from the orifice to avoid direct injection and damage.

3. A system for cleaning and charging deep boreholes in coal mine production according to claim 1, characterized in that: The cleaning pipe (10) is arc-shaped and is convenient for sweeping away rock residues and accumulated water.

4. A system for cleaning and charging deep boreholes in coal mine production according to claim 1, characterized in that: The air outlet pipe (13) is arranged obliquely, and its outlet faces the direction of the orifice.

5. A system for cleaning and charging deep boreholes in coal mine production according to claim 1, characterized in that: Six connecting pipes (11) are provided, and five reinforcing pipes (12) are provided. The reinforcing pipes (12) are sleeved on the outer periphery of the connecting pipe (11) in the middle.

6. A system for cleaning and charging deep boreholes in coal mine production according to claim 1, characterized in that: The charging device includes a plurality of PVC pipes threadedly connected in sequence, and the plurality of PVC pipes are used to extend into the borehole to deliver the explosives deep into the borehole. The PVC pipe at the deepest part of the borehole is filled with explosives, and the other PVC pipes are used to deliver the deepest PVC pipe into the deepest part of the borehole.

7. A system for cleaning and charging deep boreholes in coal mine production according to claim 6, characterized in that: The length of the PVC pipe is 1.2 m.

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